The writing area allows users to include a lot of information and really helps organize plant collection. The label write zone is 6 x 3 cm ( Recto and back). These labels are very flexible and do not break when tramples accidentally. Material: plastic. The zone of ‘Writing the label is 6 x 3 cm (front and rear). Made of PVC plastic, anti-aging and waterproof. Beautiful bright colors to make it easier for the distinction .